The 2018 Darwin Triple Crown (formally known as 2018 CrownBet Darwin Triple Crown) was a motor racing event for the Supercars Championship, held on the weekend of 15-17 June 2018. The event was held at Hidden Valley Raceway near Darwin in the Northern Territory and consisted of two races, 120 and 200 kilometres in length. It was the seventh event of sixteen in the 2018 Supercars Championship and hosted Races 15 and 16 of the season.